Home / 120,891.17-166,831.49-67,175.21

Finding the Fourth Proportional to 120,891.17, 166,831.49 and 67,175.21

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Solution

The fourth proportional to 120,891.17, 166,831.49 and 67,175.21 is: 92,702.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,891.17 : 166,831.49 = 67,175.21 : x
  2. Step 2: Convert to fraction form
    120,891.17/166,831.49 = 67,175.21/x
  3. Step 3: Cross multiply
    120,891.17x = 166,831.49 × 67,175.21
  4. Step 4: Simplify right side
    120,891.17x = 11,206,940,960.38
  5. Step 5: Solve for x
    x = 11,206,940,960.38/120,891.17
  6. Step 6: Final answer
    x = 92,702.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.